scummy

adj (-ier, -iest) of, like or containing scum(1) （似）泡沫或浮渣的; 含有泡沫或浮渣的.

scrupulous, scrupulously, scrutable, scrutineer, scrutinize, scrutinize, scrutinise, scrutiny, scuba, scud, scuff, scuff (also `scuff-mark), scuffle, scull, scullery, scullion, sculpt, sculptor, sculptural, sculpture, scum, scupper, scurf, scurfy, scurrility, scurrilous, scurrilously, scurrilousness, scurry, scurvily, scurvy, scut, scutter, scuttle, Scylla, scythe, SDLP, SDP, SE, sea, sea air,